What would be the lowest water temperature survivable by either Koior Goldfish?
I’m actually leaning towards the planned pond being occupied by Shubunkins/Comets – the reasoning behind this being, that for now, I’m not convinced that I would be able to build a large enough pond to house koi. Living in an area where we can get heavy frosts I need to carefully consider temperature drops in the winter (although not to the extent of those in even colder climates) – this winter has actually been very mild but I can’t count on this. Obviously the pond needs to be dug to a depth below the frost line to prevent the whole thing from freezing solid. From recent observations of the reservoir for my water feature coupled with the depth of my old pond and how far that iced up I’m pretty sure that I can get the depth to avoid a total freeze up…..but I am now curious how low the temperature can drop at the bottom of the pond without it adversely affecting the fish…
